Chrissy Teigen posted a photo on Instagram that shows her wearing a face mask and getting her vagina steamed.

Vaginal steaming is a spa treatment that was once touted by Gwyneth Paltrow's Goop.

But gynecologists warn that it could literally burn you and disrupt the balance of microbes that keep the vagina healthy.

Chrissy Teigen is known for her candor on social media. She's used her Instagram and Twitter platforms to share her personal struggles with everything from acne, to stretch marks, to postpartum depression.

On Monday, she offered a whole new kind of glimpse into her personal life, posting an Instagram photo that apparently shows her steaming her vagina. (Yes, vagina steaming is real. It's a spa treatment once famously recommended by Gwyneth Paltrow's wellness website Goop.)

In the photo Teigen is wearing a sheet mask, holding a heating pad on the back of her neck, and sitting on what looks like a small box.

"face mask / heat pad / vagina steam no I don't know if any of this works but it can't hurt right? *vagina dissolves*," she wrote in the caption.

It seems from the post — especially the "vagina dissolves" part — that Chrissy doesn't take vagina steaming too seriously. It's not like she's explicitly recommending it to her 18 million followers or promising that it has health benefits.

But it's still a good reminder that steaming your vagina — even if you only try it as a joke — could have negative consequences.

"The lactobacilli strains that keep vaginas healthy are very finicky about their environment and raising the temperature with steam ... is likely not beneficial and is potentially harmful," gynecologist Dr. Jen Gunter wrote on her blog in 2015. If the steam contains other ingredients besides just vaporized water, she added, it's possible those substances could cause further vaginal disruption.